Update app.py

app.py

@@ -710,8 +710,8 @@ async(c, o, p, d, n, m, s)=>{
         document.getElementById("model3D").getElementsByTagName("canvas")[0].addEventListener('pointermove', function(evt) {
         if (md === true) {
           rdir = BABYLON.Engine.LastCreatedScene.activeCamera.getDirection(xdir);
-          BABYLON.Engine.LastCreatedScene.meshes[BABYLON.Engine.LastCreatedScene.meshes.length-2].position.x = parallax * rdir.x;
-          BABYLON.Engine.LastCreatedScene.meshes[BABYLON.Engine.LastCreatedScene.meshes.length-2].position.z = parallax * rdir.z;
+          BABYLON.Engine.LastCreatedScene.getMeshByName("videoDome").position.x = parallax * rdir.x;
+          BABYLON.Engine.LastCreatedScene.getMeshByName("videoDome").position.z = parallax * rdir.z;
           
           x = parseInt(evt.clientX - evt.target.getBoundingClientRect().x);
           y = parseInt(evt.clientY - evt.target.getBoundingClientRect().y);
@@ -1313,9 +1313,9 @@ with gr.Blocks(css=css, js=js, head=head) as demo:
               }
               parallax = this.value;
               rdir = BABYLON.Engine.LastCreatedScene.activeCamera.getDirection(xdir);
-              BABYLON.Engine.LastCreatedScene.meshes[BABYLON.Engine.LastCreatedScene.meshes.length-2].position.x = parallax * rdir.x;
-              BABYLON.Engine.LastCreatedScene.meshes[BABYLON.Engine.LastCreatedScene.meshes.length-2].position.z = parallax * rdir.z;
-              this.parentNode.childNodes[2].innerText = parallax;
+              BABYLON.Engine.LastCreatedScene.getMeshByName(\"videoDome\").position.x = parallax * rdir.x;
+              BABYLON.Engine.LastCreatedScene.getMeshByName(\"videoDome\").position.z = parallax * rdir.z;
+              this.parentNode.childNodes[2].innerText = parallax.toFixed(1);
             '/><span>0.0</span></span><br/>
             <span><label for='contrast' style='width:8em'>Contrast</label><input id='contrast' type='range' style='width:128px;height:1em;' value='1.0' min='0' max='2' step='0.001' oninput='
               if (!BABYLON.Engine.LastCreatedScene.activeCamera.metadata) {